Sticking with a technology for a long period of time pays the dividend of being able to crank out stuff like its a reflex. I get that DHH created Rails framewo

Sticking with a technology for a long period of time pays the dividend of being able to crank out stuff like its a reflex. I get that DHH created Rails framework so he is intimately knowledgeable but this concept of sticking with and going deep on a tech stack will be much better for someone's career than hopping to whatever fad is trending.